Overview numbers

Final number of papers included in the systematic review: 68 (see the full PRISMA diagram in the main paper.).

Some of these studies did not provide patient numbers split for their LMIC and HIC participants.

description n_studies n_patients
lmic_separated 62 708032
lmic_hic_together 6 86643

Range of study sizes in the LMIC separated group:

[1]    335 428346

Number of studies with over 3,000 LMIC patients:

n > 3000 nn
FALSE 37
TRUE 25

5 largest studies:

n countries study_design
428346 Brazil Registry
34325 Thailand Database
32040 China Registry
27743 Zambia (3549), Malawi (24194) Cohort (multiple countries)
16882 Brazil Cohort (single centre)

Studies where country-specific n patients was not separated/given:

study_id
frajzyngier_et_al-2012
moreno_et_al-2015
nagoshi_et_al-2016
garcia_et_al-2016
globalsurg_collaborative-2016
acaroglu_et_al-2017
globalsurg_collaborative-2018

Studies where the list of countries was not separated/given:

study_id
isos-2016

71 LMIC countries have taken part in Surgical Big Data Studies.

Yearly analysis (Figure X)

Column

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Print

Maps (Figure 2)

Outcomes (Figure 3)

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